KT 17 -- asking Series 1 and Series 2 info ??

[pacer 3,173]

My C175 with series 1 and unknown hrs would smoke a little bit and use a little oil, but ran beautifully, so it obviously had some hrs on it. I have a ...15/20°? slope that comes off the road side to the ditch, take 2-3 passes with a 48" deck and always made me 'pucker' when I needed to cut that, but never had a problem there for some 3-4 yrs. I faithfully kept a ck on the oil and ran it a tad over full.

 

Oddly enough. I was running a 'D' tractor on CL and a fella with a prosthetic left leg needing a hyd cause he couldnt use a clutch pedal came to look at it but had too much problem getting on/off. Spotted the C175 and was able to get on/off pretty easily and ended up selling it to him. I warned/alerted him about the engine and he left happy..... 1-1/12 yrs later he came back for help with a couple minor probs, engine still going good. Another 1-1/2 yrs later he was back asking for a couple minor probs, asked how the KT17 was doing and he says 'no problem'..... Had to have had MANY hrs on it by then.

[RED-Z06 2,221]

Slopes and low oil is what usually did them in.  Mechanically, the rotating and reciprocating parts really didnt change from a design standpoint and block changes were to facilitate the oil passages...the engines themselves from S1 to S2 were otherwise mostly the same and reliable.  The low pressure system supplied adequate oil to the mains..but the rods were basically drip oiled from the cam above.  If the original system ran at a decent pressure and supplied a spray to the rods...probably wouldn't have been a problem. But..if you ran on a hill...or plowed with one side in a trench...the oil system wasn't adequate, the mains would wear..oil came out at the mains and starved the cam/rods.  People with flat yards that just mowed, kept the oil up, fresh...often were oblivious to the bad design 

[Brockport Bill 1,664]

1 hour ago, RED-Z06 said:

Slopes and low oil is what usually did them in.  Mechanically, the rotating and reciprocating parts really didnt change from a design standpoint and block changes were to facilitate the oil passages...the engines themselves from S1 to S2 were otherwise mostly the same and reliable.  The low pressure system supplied adequate oil to the mains..but the rods were basically drip oiled from the cam above.  If the original system ran at a decent pressure and supplied a spray to the rods...probably wouldn't have been a problem. But..if you ran on a hill...or plowed with one side in a trench...the oil system wasn't adequate, the mains would wear..oil came out at the mains and starved the cam/rods.  People with flat yards that just mowed, kept the oil up, fresh...often were oblivious to the bad design 

i am not an internal engine expert - but understand the basics -- however, i did watch a couple good You Tubes on the internals of the two model S1 and S2 engines that were very good insights to the S1 design issues and the S2 design modification. thanks for your insights !